Thermalization ,bistability and photon BEC in erbium-doped fiber cavities

Thermalization ,bistability and photon BEC in erbium-doped fiber cavities
December, 18, 2017
14:30
in Room 1061 Electrical Eng. Building Technion City


סמינר באלקטרואופטיקה ומיקרואלקטרוניקה
Electro-optics and Microelectronics Seminar

Speaker: Michael Zhurahov

Affiliation: Dept. of Electrical Engineering Technion

On:
 
Thermalization ,bistability and photon BEC in erbium-doped fiber cavities

Erbium-doped fibers (edf) are widely used as amplifiers in fiber optic communication. In this work we study various physical phenomena in erbium doped fiber cavities and loss filters. In the first part we present an experimental demonstration of classical cw laser condensation (LC) in the frequency (mode) domain. In the second part we demonstrate thermalization and Bose-Einstein (BE) spectral distribution of photons in standard erbium–doped fibers (edf) in a broad spectral range up to ~200nm at the 1550nm wavelength regime. In the third part we show an experimental and theoretical study of bistability and hysteresis that depend on the elimination of backward amplified spontaneous emission (ASE) in a unidirectional ring edf laser.

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